<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Bootstrap 101 Template</title>
    <link href="./lib/bootstrap/css/bootstrap.css" rel="stylesheet">
    <!--[if lt IE 9]>
    <script src="./lib/html5shiv/html5shiv.min.js"></script>
    <script src="./lib/respond/respond.js"></script>
    <![endif]-->
</head>

<body>
    <style>
        .mobileImg {
            width: 100%;
            display: block;
        }

        .mobileImg>img {
            width: 100%;
            display: block;
        }

        .pcImg {
            width: 100%;
            height: 410px;
            display: block;
            /*设置背景图片了*/

            /*设置图片居中显示*/
            background-position: center center;
            /*设置背景图片的大小*/
            background-size: cover;
        }
    </style>
    <div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
        <!-- Indicators -->
        <ol class="carousel-indicators">
            <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
            <li data-target="#carousel-example-generic" data-slide-to="1"></li>
            <li data-target="#carousel-example-generic" data-slide-to="2"></li>
            <li data-target="#carousel-example-generic" data-slide-to="3"></li>
        </ol>

        <!-- Wrapper for slides -->
        <div class="carousel-inner" role="listbox">
            <div class="item active">
                <!--移动端-->
                <a href="javascript:;" class="mobileImg hidden-sm hidden-md hidden-lg">
                    <img src="./images/slide_01_640x340.jpg" alt="...">
                </a>
                <!--非移动端-->
                <a href="javascript:;" class="pcImg hidden-xs"
                    style="background-image: url('./images/slide_01_2000x410.jpg');"></a>
            </div>
            <div class="item">
                <a href="javascript:;" class="mobileImg  hidden-sm hidden-md hidden-lg">
                    <img src="./images/slide_02_640x340.jpg" alt="...">
                </a>
                <a href="javascript:;" class="pcImg  hidden-xs"
                    style="background-image: url('./images/slide_02_2000x410.jpg');"></a>
            </div>

            <div class="item">
                <a href="javascript:;" class="mobileImg  hidden-sm hidden-md hidden-lg">
                    <img src="./images/slide_03_640x340.jpg" alt="...">
                </a>
                <a href="javascript:;" class="pcImg  hidden-xs"
                    style="background-image: url('./images/slide_03_2000x410.jpg');"></a>
            </div>
            <div class="item">
                <a href="javascript:;" class="mobileImg  hidden-sm hidden-md hidden-lg">
                    <img src="./images/slide_04_640x340.jpg" alt="...">
                </a>
                <a href="javascript:;" class="pcImg  hidden-xs"
                    style="background-image: url('./images/slide_04_2000x410.jpg');"></a>
            </div>
        </div>
        <a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
            <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
            <span class="sr-only">Previous</span>
        </a>
        <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
            <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
            <span class="sr-only">Next</span>
        </a>
    </div>
    <script src="./lib/jquery/jquery.min.js"></script>
    <script src="./lib/bootstrap/js/bootstrap.min.js"></script>
</body>

</html>